Deep ocean minerals inhibit IL-6 and IGFIIR hypertrophic signalling pathways to attenuate diabetes-induced hypertrophy in rat hearts

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題名:	Deep ocean minerals inhibit IL-6 and IGFIIR hypertrophic signalling pathways to attenuate diabetes-induced hypertrophy in rat hearts
作者:	Chieh-Hsiang;Lu, Chieh-Hsiang;She, Chia-Yao;Shen, Chia-Yao;Dennis, Jine-;Hsieh, Dennis Jine-Yuan;Lee, Cheng-Yu;Lee, Cheng-Yu;Cha, Ruey-Lin;Chang, Ruey-Lin;Ju, Da-Tong;Ju, Da-Tong;Pai, Pei-Ying;Pai, Pei-Ying;Padma, Vijaya;Viswanadha, Vijaya Padma;歐秀中;黃志揚;Huang, Chih-Yang
貢獻者:	醫學檢驗暨生物技術學系
關鍵詞:	IGFIIR;IL-6;cardiac hypertrophy;deep ocean minerals;diabetes.
日期:	2019-09
上傳時間:	2020-08-20 06:58:58 (UTC+0)
出版者:	亞洲大學
摘要:	We previously reported that deep sea water (DSW) prolongs the life span of streptozotocin (STZ)-induced diabetic rats by the compensatory augmentation of the insulin like growth factor (IGF)-I survival signaling and inhibition of apoptosis. Here, we investigated the effects of DSW on cardiac hypertrophy in diabetic rats. Cardiac hypertrophy was induced in rats by using STZ (65 mg/kg) administered via IP injection. DSW was prepared by mixing DSW mineral extracts and desalinated water. Different dosages of DSW-1X (equivalent to 37 mg Mg2+·kg-1·day-1), 2X (equivalent to 74 mg Mg2+·kg-1·day-1) and 3X (equivalent to 111 mg Mg2+·kg-1·day-1) were administered to the rats through gavage for 4 wk. Cardiac hypertrophy was evaluated by the heart weight-to-body weight ratio and the cardiac tissue cross-sectional area after hematoxylin and eosin staining. The protein levels of the cardiac hypertrophy signaling molecules were determined by Western blot. Our results showed that the suppressive effects of the DSW treatment on STZ-induced cardiac hypertrophy were comparable to those of MgSO4 administration and that the hypertrophic marker brain natriuretic peptide (BNP) was decreased by DSW. In addition, DSW attenuated both the eccentric hypertrophy signaling pathway, IL-6-MEK-STAT3, and the concentric signaling pathway, IGF-II-PKCα-CaMKII, in DM rat hearts. The cardiac hypertrophy-associated activation of extracellular signal-regulated kinase (ERK) and the upregulation of the transcription factor GATA binding protein 4 (GATA4) were also negated by treatment with DSW. The results from this study suggest that DSW could be a potential therapeutic agent for the prevention and treatment of diabetic cardiac hypertrophy.NEW & NOTEWORTHY Deep sea water, containing high levels of minerals, improve cardiac hypertrophy in diabetic rats through attenuating the eccentric signaling pathway, IL-6-MEK5-STAT3, and concentric signaling pathway, IGF2-PKCα-CaMKII. The results from this study suggest that deep sea water could be a potential therapeutic agent for the prevention and treatment of diabetic cardiac hypertrophy.
關聯:	JOURNAL OF APPLIED PHYSIOLOGY
顯示於類別:	[醫學檢驗暨生物技術學系] 期刊論文

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